Loom-shuttle.



E. S. STIMPSON.

LOOM SHUTTLE.

APPLICATION FILED AUG. 4, 1913.

1,1 17,?19. Patented Nov. 17, 1914.

2 SHEETS-SHEET 1.

E. S. STIMPSON.

LOOM SHUTTLE.

APPLICATION FILED AUG.4,1913.

S HEB T 2.

INVENTOR Patented Nov. 17, 1914.

2 SHBE'IS- efil aid A. 55779050.

w r 7 4 m EDVIARD S. STIMPSON, OF HOPEDALE. MASSACHUSETTS, ASSIGNOR TO DRAPER COM- PAN'Y, OF HOPEDALE. MASSACHUSETTS, A CORPORATION OF MAINE.

LOOM-SHUTTLE.

Application filed August 4. 1913.

To aZZ whom it may concern Be it known that I, Eowano S. S'rnirsoiv, of Hopedale, in the county of \Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Loom-Shuttles. of which the following is a specification.

The present invention relates to an auto matically threading shuttle having a slotted eye and adapted to be used in a weft replenishing loom, and the present improvements relate to a metallic lining for the eye and to a combined thread guide and guard which directs the thread into the eye and prevents the escape of the thread therefrom.

The improvements are illustrated in the accompanying drawings in which Figure l is a plan view of the eye end of the shuttle. Fig. 2 is a horizontal section in the plane indicated by the line in Fig. i. Fig. 3 is a longitudinal section of the body of the shuttle in the plane indicated by the line 3-3 in Fig. 2. the eye lining and combined thread guide and guard being in elevation, and a portion of the threader being broken away. Fig. l is a cross section in the plane indicated by the line f; in Fig. 3. Fig. 5 is a perspective view of the eye lining and the combined thread guide and guard detached.

vThe improvements are shown as applied tb an automatically threading shuttle which substantially similar to that shown in United States Letters Patent. No. 933.407, September T, 1909. The shuttle has a threading chamber B at its eye end in which is located a sheet metal threader. .'\s in that patent, this sheet metal threader comprises separated vertical side walls. D, with a thread pasage 1 between them. a beak E at the outer end which overhangs the outer end of the thread passage and directs the thread to the slotted eye F. of the shuttle. a guard G at the front which overhangs the beak E. and a guard ll at the inner end of the thread passage which re tains the thread in the thread passage between the two side walls of the threader. The wall C is at the eye side or front of the shuttle and the wall D is at the opposite or rear side. The threader is held in place by means of a transverse bolt .l. which extends through apertures in the shuttle body and in the walls of the threader. this bolt screwing into a nut K. rounter-sunl in the rear side of the shuttle body. as shown in Specification of Letters Patent.

Patented Nov. 17, 1914.

Serial No. 782,872.

Fig. In all of these respects the construction is substantially as shown in latent No. 933.497. The present improvements are especially adapted for use with a shuttle having the threader of said Patent X0. 933.497. The improved eye lining, together with the improved thread guide and guard are formed from a single piece of sheet metal as illustrated in Fig. 5. The eye lin ng comprises a cylindrical tube L open at its top and both ends and having two upwardly projecting and separated tongues M and N. The outer tongue M seats against the wood of the shuttle body at the outer side of the eye slot as shown in Fig. 2, while the tongue N seats against the wood of the shuttle body at the opposite or inner side of the eye slot. The cylindrical tubular lining L rests upon the bottom of the eye slot. The combined thread guide and guard O is made in one piece with the eye lining and it extends from its lower end where it joins the tube L outwardly toward the point of the shuttle and forwardly toward the front wall of the shuttle. the thread guide 0 extends close up to the top I of the threader and behind the beak E and above the lower edge of the beak. Accordingly. the thread cannot possible pass over the top of the thread guide 0 nor can it get caught between the thread guide 0 and the front wall C of the threader. Imn'iediately after a fresh bobbin has been inserted into the shuttle. the shuttle travels inwardly with the eye end back. As the free end of the bobbin or cop thread is attached (in the manner common in the well-known Xorthrop loom) the thread is laid in the thread passage I below the beak E in a wellknown way. Then. when the shuttle travels in the opposite direction with its eye end forward. the thread (which is then held by the cloth) rides down the thread guide 0 and is guided thereby over the top of the outer tongue .\I and into the cylindrical lining L of the shuttle eye. Thereafter, the

thread travels through the thread passage I.

out through the cylindri -al lining and draws against the base of the thread guide 0 as shown in Fig. and against either the outer or the inner portion of the metallic lining depending upon the direction in which the shuttle is traveling. No special snubbing post are employed: the eye lining and its adjuncts serving the purpose.

it is of vital importance that the thread The extreme upper end of iii) should not escape from the eye during the running of the shuttle. This is prevented by two expedients in addition to the obstruction to the escape of the thread afforded by the threader itself. T he thread guide 0 extends close to the body of the shuttle outwardly beyond the eye, thus affording a narrow throat Q, (see Fig. 2) just wide enough for the passage of the thread. Thls narrow throat is located at the plane in which the section shown in Fig. 2 is located. Below the plane of this throat, as shown by the section line 2-2 in Fig. l, the thread guide 0 is rovided with adownwardly and rearward y extending catch R which is below the plane of the throat Q and which extends partly'across the thread passage so as to act as a guard to obstruct any upward throw I of the thread as high as the throat. Accordingly, the thread is effectively retained within the thread eye, thus preventing breakage ofthe thread which is a frequent incident of its escape from the eye.

The forward tongue M is not as'high as the rear tongue N, as shown in Figs. 3, 4; and 5 of the drawings. Accordingly, the entering thread passes over the top of the front tongue M and the rear tongue N prevents the thread from coming in contact with the wood of the shuttle at the inner side of the eye slot. I "Iclaim: 1. An automatically threading shuttle having, in conibii'iation, a sheet metal 'threader having a thread passage and an "overhanging beak at the outer end of the thread passage; a slotted eye; a. sheet metal cylindrical lining for the eye open at both ends and at the-top with integral upwardly extending tongues lying against the outer and inner sides of the eye slot, the outer tongue being shorter than the inner tongue; a combined thread. ide and guard integral with the lining, and extending from the inner rear portion of the lining upwardly, outwardly and forwardly and approaching a portion of the shuttle outwardly beyond the eye so as to leave a narrow 't roat for the passage of the thread, the upper end of the guide extending close to the top of the threader and behind the beak; and a rear-' 'wardly and downwardly extending catch integral with the guide and located below the throat.

2. An automatically threading shuttle having, in combination, a thread passage and an overhanging beak at the outer end of the thread passage; a slotted eye; a metallic cylindrical lining for the eye open at both ends and at the top with integral u wardly extending tongues lying against t e outer and inner sides of the eye slot, the outer tongue being shorter than the inner tongue; a combined'thread guide and guard 3. An automatically threading shuttle having, in combination, a thread passage and an overhanging beak at the outer end I of the thread passage; a slotted eye; a metallic lining for the eye open at both ends and at the top with integral upwardly extendmg tongues lying against the outer and inner sides of the eye slot, the outer tongue v being shorter than the inner tongue; a combined thread guide and guard integral with the lining, and extending from the inner rear ortion of the lining upwardly, outward y and forwardly and approaching a portion of the shuttle outwardly beyond the eye so as to'leave a narrow throat for the passage of the thread; and a rearwardly and downwardly extending catch integral with the guide and located below the throat.

4. An automatically threading shuttle.

having, in combination, a thread assage; a slotted eye; and a metallic cylindrical 11ning for the eye open at both ends and at the top; and a combined thread guide and guard integral with the lining, and extending from the inner rear ortion of the lining upwardly, outwar ly and'forwardly and approaching a' portion of the shuttle out 'wardly beyond the eye so as to leave a narrow throat for the passage ofthe thread;

and a rearwardly and downwardly extending catch integral with the guide and located below the throat.

An automatically threading shuttle i having, 111 combination, a thread passage;"'

a slotted eye; a lining for the eye open at both ends and at the'top; a thread guide extending from the inner. rear portion of the lining upwardly, outwardly and forwardly and approaching a portion of the shuttle outwardl beyond the eye so as to leave a narrow t roat for the passage of the thread; and a catch extending rearwardly and downwardly from the guide partly across passage and located below the the thread throat.

6. An automatically threading shuttle having, in combination, a thread passage;

a slotted eye; a lining for the eye open at both ends and at the top; a thread guide extending from the inner rear portion of the lining upwardly, outwardly 'and forwardly and approaching a portion of the shuttle outwardly beyond the eye so as to leave a of the guide extending close to the top of its threader and behind the beak; and a 15 catch extending rearwardly from the guide partly across the thread passage and located below the throat.

In Witness whereof, I have hereunto signed my name in the presence of two sub- 2 scribing witnesses.

EDWARD S. STIMPSON.

Witnesses:

DANA Osooon, JOSEPH H. SHEPHERD. 

